22S 
ABSTRACTS FROM EXCHANGES. 
from the lower extremity of the bone upwards. The case is one 
more amongst similar accidents when the possibility of the injury 
has not been considered and precautions taken against it.— ( Soc . 
des Sc. Veter, de Lyon.) 
Clinical Differential Diagnosis*of the Diseases with 
Bloody Urine [Prof. G. Moussu]. —In one of his clinical lec¬ 
tures the author said that practitioners have difficulty in making 
a differential diagnosis between haemorrhagic cystitis or essential 
hematuria of bovines, complicated infectious pyelo-nephritis and 
bovine piroplasmosis, or febrile hemoglobinuria. The following 
microscopic characters of the urine will aid the practitioner. In 
the hcemorrhagic cystitis, when the urine is collected and deft for 
a few hours in a test tube, it is first with a uniform rosy, red or 
brown color, but after a while a more or less abundant deposit 
is noticed at the bottom of the tube, while in the upper part the 
contents are clear, limpid or only slightly amber color, as normal 
urine. It is indeed normal urine isotonic; there has been no 
hemolysis, no destruction of the red corpuscles nor dissolution 
of the hemoglobin. 
In the pyelo-nephritis, if again urine is received in a test tube 
and kept for a while, at first the urine seemed cloudy, hematic, 
often brownish and foetid, or with a marked ammoniacal odor; 
after some time pus and red blood corpuscles which the urine 
contains, with even sometimes epithelial or mucous casts, drop 
to the bottom of the tube and form a thick, dirty and colored 
deposit. The urine above it is cloudy, reddish, and, if exposed 
to the air, becomes rapidly brown. This urine is not isotonic; 
there is hemolysis, and part of the hemoglobin of the red cor¬ 
puscles is dissolved. 
In piroplasmose the urine, collected and kept as before in a 
test tube, leaves no deposit, remains uniformly tinted. It slowly 
alters when exposed to the air and gets brown only with time. 
These characters of the urine in those three diseases will help 
to establish a differential diagnosis.— (Rec. de Med. Veter.) 
On the Improperly Named Chorea of Dogs [Dr. L: 
Marchand and Prof. G. Petit]. —The object of the articles pub¬ 
lished by the authors, with illustrations of the nervous lesions 
which they have found in the cases recorded, was to furnish 
the anatomo-pathological demonstration of the analogy existing 
between chorea and the infantile paralysis or poliomyelitis. They 
have classified the several cases subjects of their observations as 
